The Event Horizon Telescope | Event Horizon Telescope
Multi-year Event Horizon Telescope observations capture evolving polarization p… arrow_circle_right
Event Horizon Telescope – Wikipedie
Při této akci bylo zapojeno osm radioteleskopů nebo jejich soustav, např. soustavy ALMA a radioteleskopu APEX v Chile, radioteleskopu South Pole Telescope umístěného na jižním pólu apod.
Event Horizon Telescope - Wikipedia
The Event Horizon Telescope (EHT) is a telescope array consisting of a global network of radio telescopes. The EHT project combines data from several very-long-baseline interferometry (VLBI) stations around Earth, which form a combined array…
Event Horizon Telescope — ČT24 — Česká televize
Vědecký projekt Event Horizon Telescope (EHT) vyzkoušel vylepšenou metodu pozorování, díky které se podařilo získat přímo z povrchu Země zatím nejkvalitnější snímky vzdáleného vesmíru – tedy snímky s nejvyšším rozlišením.
Event Horizon Telescope — A complete guide | Space
The Event Horizon Telescope (EHT) is a network of synchronized observatories around the world and is famed for capturing the first image of a black hole.
How does the Event Horizon Telescope work?
The EHT consists of several radio telescopes around the globe, which work together as an astronomical interferometer. Here, the resolution of the instrument is no longer given by the size of a single telescope, but by the distance between pairs of telescopes. Simply stated, we track the arrival times of radio waves emitted from the vicinity of an observed astronomical source (a black hole) at our telescopes at different locations on Earth. From the differences in arrival times, we can then reconstruct the structure of the observed source with sufficient resolution. In an analogy, one can view the EHT array as a single big incomplete virtual radio telescope, where the individual parts are given by the handful of telescopes in our array. Or as small shards of a big broken mirror.What makes the Event Horizon Telescope special?
The EHT has telescopes around the globe and is therefore a "very long baseline interferometry" (VLBI) network. With the VLBI techniques, the highest resolution in astronomy can be achieved. While there are other VLBI arrays in the world (e.g., the Very Long Baseline Array and the European VLBI Array), the EHT is special, because the other networks observe radio waves with long (centimeters) wavelengths, while the EHT observes at much shorter (millimeter) wavelengths. The shorter the wavelength of the measured radio waves, the more difficult the data processing and calibration, but the better the resolution. This makes the EHT the only instrument on Earth that has a sufficient resolving power to directly image black holes. This resolving power would also be sufficient to see an apple on the moon.How does the Event Horizon Telescope differ from other major telescopes such as the James Webb Space Telescope (JWST)?
The EHT is not a single telescope like the JWST, but an array of individual radio telescopes. JWST observes in the micrometer (near infrared) range with a resolution of about 0.1 arcsecond, where one arcsecond is 1/3600 of a degree. The EHT observes in the millimeter (radio) range with a resolution of 0.000025 arcseconds. So the EHT can see 4000 sharper than the JWST.Event Horizon Telescope | NSF - National Science Foundation
The telescope is named after the "event horizon," the boundary of the black hole beyond which no light can escape.
Event Horizon Telescope - Nejnovější články | TN.cz
Téma: Event Horizon Telescope. Sledujte videa a články na téma Event Horizon Telescope. Aktuální zprávy z domova i ze světa na webu TN.cz.
Event Horizon Telescope - Idnes.cz
Projekt Event Horizon Telescope si připsal další úspěch, když vědci ze získaných dat vytvořili snímek černé díry Sagittarius A* (Sgr A*), která se nachází v centru naší galaxie.
Event Horizon Telescope – VTM.cz
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